JLPT N1 Vocabulary 比重 (hijuu) specific gravity JLPT N1 Learning Done Flashcards Recall mode Meaning 比重 (ひじゅう, hijuu) is a JLPT N1 vocabulary word meaning “specific gravity”. Kanji in this word 比 compare 重 heavy ← Previous一息 All N1 vocabulary Next →宙返り